Error Code 44
Main board cannot control the compressor
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: F/R
What This Means
Inverter cable disconnected; Wiring damaged or shorted; Inverter PCB failure; Main PCB processor issue
What actually causes this:
Communication wire is broken or inverter board is faulty
First Thing to Check
Check all wire connections between main board and compressor driver
Parts Involved
How to Fix
- 1
1. Check all connectors between main PCB and inverter
- 2
2. Inspect communication cable for damage
- 3
3. Look for solder bridges on inverter board
- 4
4. Verify with oscilloscope if signal is present
Other Error Codes for RF22A4110SG
WiFi remote control feature not working
Control panel cannot talk to main circuit board
Freezer is not cold enough
Cannot detect compressor motor position
Inverter board is too hot
Fresh food compartment is warming up
Humidity level cannot be monitored
Water in dispenser tank cannot be heated